CN220559702U - An extrusion fixture, display module and electronic equipment - Google Patents

Abstract

This application provides an extrusion jig, a display module and electronic equipment. The extrusion jig is used to constrain and shape the adhesive glue at the bending area of the display module. It includes: a shell, the The casing is a hollow structure with an open top, and a support portion for supporting the display module and a constraint portion for constraining and shaping the adhesive glue at the bending area of the display module are formed on the inner wall of the casing. The shape and size of the constraining portion are consistent with the shape and size of the desired adhesive at the bending area of the display module. This application makes the adhesive glue at the bending area of the display module regular in shape and moderate in thickness, thereby making it less likely to interfere with the middle frame of the electronic device and improving the waterproof reliability and stability of the electronic device.

Description

An extrusion fixture, display module and electronic equipment

Technical field

The present application relates to the field of electronic technology, and in particular to an extrusion jig, a display module and electronic equipment.

Background technique

With the development of display technology, modules with narrow bezel designs are increasingly favored by terminal manufacturers and consumers. At present, the flexible characteristics of the flexible screen are mainly used to achieve a full screen. By bending the edge of the flexible screen to the back of the main display area, the width of the flexible screen frame is reduced and the screen-to-body ratio is increased. At present, in order to improve the visual appearance of the display, the borders of the screens of electronic devices are getting narrower and narrower, and the screen-to-body ratio (the ratio of the display area to the front area of the device) is getting larger and larger. Taking mobile phone screens as an example, current technology mainly increases the screen-to-body ratio by reducing the bottom bezel, and reducing the bottom bezel mainly reduces the bending radius of the display bending area (Pad Bending) and the display distance of the bending area. The distance between the middle frame is achieved. However, this method can easily shorten the liquid inlet path and reduce the waterproof reliability of the equipment. Moreover, the reduction of the bending radius will increase the risk of dead bending in the bending area, resulting in a reduction in production yield and a reduction in the distance between the display bending area and the middle frame. , causing the frame to easily deform and squeeze the lines in the bending area during the fall process, causing poor display problems. In other words, the current method can easily lead to reduced reliability while achieving narrow borders.

Utility model content

In order to solve the above technical problems, the present application provides an extrusion jig, a display module and an electronic device. The extrusion jig of the present application is used to form the adhesive glue in the bending area of the display module, so that the display module can be bent. The adhesive glue in the area has a regular shape and moderate thickness, so it is not easy to interfere with the middle frame of the electronic device, thereby improving the impact resistance of the actual module unit of the electronic device and increasing the overall mechanical and waterproof reliability of the device. , improving equipment stability.

In a first aspect, the present application provides an extrusion jig for constraining and shaping the adhesive glue at the bending area of the display module. The extrusion jig includes: a shell with a top opening A hollow structure, a support part for supporting the display module and a constraint part for constraining and shaping the adhesive glue at the bending area of the display module are formed on the inner wall of the housing, and the constraint part The shape and size are consistent with the shape and size of the adhesive glue expected at the bending area of the display module.

According to the first aspect, using the extrusion jig of the present application to form the adhesive glue in the bending area of the display module can make the adhesive glue in the bending area of the display module regular in shape and moderate in thickness, so that the adhesive glue does not It is easy to interfere with the middle frame of electronic equipment, which not only improves the impact resistance of the actual module of the electronic equipment, but also increases the overall mechanical and waterproof reliability of the equipment, and improves the stability of the equipment.

According to the first aspect, or any implementation of the above first aspect, the constraining part includes an extrusion stage for constraining and shaping the adhesive glue at the bottom of the bending area of the display module, and for The adhesive glue on the side wall of the bending area of the module is used to constrain and shape the extrusion groove. This allows the adhesive on the bottom and side walls of the bending area to be constrained and shaped respectively, so that the adhesive reaches the desired shape and size.

According to the first aspect, or any implementation of the above first aspect, the bottom of the extrusion stage and the extrusion groove are on the same plane. This arrangement facilitates the constraint and shaping of the adhesive glue in the bending area of the display module.

According to the first aspect, or any implementation of the above first aspect, the extrusion station includes a main body part and ear parts located on both sides of the main body part, and the circumferential size of the main body part is consistent with the extrusion The circumferential dimensions of the grooves are consistent. This arrangement allows the adhesive to achieve the desired shape and size.

According to the first aspect, or any implementation of the above first aspect, the housing is generally circular or rectangular. In this way, the shape of the extrusion fixture is reasonably set according to the shape of the display module, thereby positioning and constraining the display module, thereby achieving constraint and shaping of the adhesive glue in the bending area of the display module.

According to the first aspect, or any implementation of the above first aspect, the support portion includes at least two support platforms, and the at least two support platforms are arranged at intervals along the circumferential direction of the inner wall of the housing. Such an arrangement facilitates the jig to support the display module, thereby achieving constraint and shaping of the adhesive at the bending area of the display module.

In a second aspect, the present application provides a display module, including: a module body and a first adhesive glue formed outside the bending area of the module body. The first adhesive glue utilizes the extrusion method described in the first aspect. The pressing jig is used for constraint and shaping, and the outer surface of the first adhesive glue is smooth.

According to the second aspect, since the extrusion jig of the present application is used to form the adhesive glue in the bending area of the display module, the adhesive glue in the bending area of the display module can be regular in shape and moderate in thickness, so that it is not easy to interact with electronics. Interference occurs in the middle frame of the device, which not only improves the impact resistance of the actual module of the electronic device, but also increases the overall mechanical and waterproof reliability of the device, improving the stability of the device.

According to the second aspect, or any implementation of the second aspect above, the first adhesive glue includes a main body part and extension parts located on both sides of the main body part, and the extension parts have an inclination relative to the main body part. of the inclined surface. This arrangement allows the first adhesive glue to cover the outer surface of the bending area, thereby enhancing the sealing of the bending area and improving the single impact resistance, mechanical and waterproof stability of the module.

In a third aspect, the present application provides an electronic device, including a housing and a display module as described in the second aspect mounted on the housing. The housing and the display module are bonded through a second Glue bonding: the first adhesive glue of the display module is bonded to part of the second adhesive glue, and the contact surface between the first adhesive glue and the second adhesive glue is flat.

According to the third aspect, since the extrusion jig of the present application is used to form the adhesive glue in the bending area of the display module, the adhesive glue in the bending area of the display module can be regular in shape and moderate in thickness, so that it is not easy to interact with electronics. Interference occurs in the middle frame of the device, which not only improves the impact resistance of the actual module of the electronic device, but also increases the overall mechanical and waterproof reliability of the device, improving the stability of the device.

According to the third aspect, or any implementation manner of the above third aspect, the contact surface between the first adhesive glue and the second adhesive glue is L-shaped. In this way, the side walls and bottom of the bending area are covered by the first adhesive glue, and the first adhesive glue is covered and supported by the second adhesive glue, thereby improving the impact resistance of the module unit and increasing the overall stability of the equipment. Mechanical and waterproof reliability improves equipment stability.

Description of drawings

Figure 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

Figure 2 is a schematic cross-sectional view of the display module of the electronic device provided in this embodiment;

Figure 3 is a schematic diagram illustrating the interference between the adhesive glue of the display module and the middle frame;

Figure 4 is a schematic structural diagram of an extrusion fixture provided according to an embodiment of the present application;

Figure 5 is a partial enlarged view of the extrusion fixture shown in Figure 4;

Figure 6 is a schematic structural diagram of an extrusion fixture provided according to an embodiment of the present application from another angle;

Figure 7 is a partial enlarged view of the extrusion fixture shown in Figure 6;

Figure 8 is a schematic structural diagram of a display module without glue dispensing in the bending area according to an embodiment of the present application;

Figure 9 is a partial enlarged view of the bending area of the module shown in Figure 8;

Figure 10 is a schematic structural diagram of a display module dispensing glue in the bending area according to an embodiment of the present application;

Figure 11 is a partial enlarged view of the bending area of the display module shown in Figure 10;

Figure 12 is a schematic structural diagram of a middle frame of an electronic device according to an embodiment of the present application;

FIG. 13 is a cross-sectional view of the display module according to the embodiment of the present application installed at the bending area after the middle frame shown in FIG. 11 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

The term "and/or" in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations.

The terms “first” and “second” in the description and claims of the embodiments of this application are used to distinguish different objects, rather than to describe a specific order of objects. For example, the first target object, the second target object, etc. are used to distinguish different target objects, rather than to describe a specific order of the target objects.

In the embodiments of this application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "such as" in the embodiments of the present application is not to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the words "exemplary" or "such as" is intended to present the concept in a concrete manner.

In the description of the embodiments of this application, unless otherwise specified, the meaning of “plurality” refers to two or more. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

Embodiments of the present application provide an electronic device. The electronic device may be a smart watch, a mobile phone, a personal computer, a tablet computer, a personal digital assistant (PDA), a vehicle-mounted computer, a television, a monitor, and other devices. The embodiments of the present application do not limit the specific form of the above-mentioned electronic equipment. As shown in Figure 1, for convenience of explanation, the terminal device is a smart watch as an example.

Referring to Figure 1, Figure 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As shown in FIG. 1 , a smart watch 100 includes a display module 101 and a housing 102 . The housing 102 includes a middle frame and a back cover. The middle frame and the back cover can be formed integrally or separately. The display module 101 and the housing 102 surround the accommodation cavity. Structures such as a printed circuit board (PCB), a processing module, and a PPG packaging module are arranged in the accommodation cavity. The processing module and the PPG packaging module are arranged on the PCB.

Referring to Figure 2, Figure 2 is a schematic cross-sectional view of the display module of the electronic device provided in this embodiment. As shown in FIG. 2 , the display module 101 includes: a flexible display panel 110 , a first back film 120 , an auxiliary support layer 130 , a support pad 140 , a second back film 150 , a polarizer 160 , an optical adhesive layer 170 and a cover plate 180 .

The side of the flexible display panel 110 facing the cover 180 is the light emitting side, and the other side opposite to the light emitting side is the backlight side. For example, the flexible display panel 110 may include a substrate, a barrier layer, a driving circuit layer, an OLED light-emitting layer, a TFE (thin film encapsulation) packaging layer, and other structures. The flexible display panel 110 in the embodiment of this application is exemplified as a structural layer, and the specific structural layers it includes are not shown.

In the embodiment of the present application, the flexible display panel 110 is bent to form a first panel layer 111 and a second panel layer 112 spaced up and down. The first panel layer 111 and the second panel layer 112 are connected through the bending area 113 . In other words, the flexible display panel 110 includes a first panel layer 111 , a second panel layer 112 and a bending area 113 . The first panel layer 111 and the second panel layer 112 are connected through the bending area 113 .

The first panel layer 111 includes a display area AA and a non-display area NA. The non-display area NA is arranged around the display area AA. The second panel layer 112 is, for example, a binding area of the flexible display panel 110 . A display driver chip and a flexible circuit board (FPC) 190 electrically connected to the display driver chip are bound on the second panel layer 112 . The bending area may include peripheral leads connecting the signal lines in the display area and the display driver chip or the flexible circuit board.

The first panel layer 111 and the second panel layer 112 are connected through the bending area 113 . The substrate of the flexible display panel 110 uses a flexible material (such as a flexible PI substrate (polyimide substrate)), so that the bending area 113 can be bent, and the second panel layer 112 can be bent to the flexible display through the bending area 112 the backlight side of the panel 110, thereby reducing the frame width on the side where the second panel layer 112 of the flexible display panel 110 is located. As shown in Figure 2, the width of the frame on the side where the second panel layer 112 is located mainly depends on the width of the NA area on the side where the second panel layer 112 is located and the size of the bending radius R. The smaller the bending radius R, the smaller the width of the second panel layer 112. The smaller the width of the frame on the side where the second panel layer 112 is located and the smaller the bending radius R, the width of the NA area on the side where the second panel layer 112 is located can also become smaller accordingly, which further reduces the width of the frame on the side where the second panel layer 112 is located. Small. The size of the bending radius is mainly affected by the thickness of the stack between the first panel layer 111 and the second panel layer 112. The smaller the thickness of the stack, the smaller the bending radius.

As shown in FIG. 2 , the stack between the first panel layer 111 and the second panel layer 112 includes a first back film 120 , an auxiliary support layer 130 , a support pad 140 and a second back film 150 . The first back film 120 and the second back film 150 are attached to the backlight side of the flexible display panel 110 . Specifically, the first back film 120 is attached to the backlight side of the first panel layer 111 . The second back film 150 is attached to the backlight side of the second panel side 112 . There is a gap between the first back film 120 and the second back film 150 . When the second panel layer 112 is bent to the backlight side of the display panel 110 through the bending area 113, the first back film 120 and the second back film 150 face each other, and the first back film 120 and the second back film 150 face The ends of the bending areas 113 are flush.

The first back film 120 and the second back film 150 can be made of polyethylene terephthalate (PET) or other materials, which can be attached to the flexible display panel through adhesive materials with adhesive properties such as mesh glue. 110 on the backlit side. PET material has the advantages of low elastic modulus and not easy to expand when heated. Therefore, the first back film 120 and the second back film 150 made of PET material will not deform due to changes in ambient temperature, reducing the risk of the first back film 120 and the possibility of peeling off the film layer connected to the second back film 150, thereby improving the yield and reliability of the display module 101. In addition, mesh glue has the advantages of being easy to fit and capable of exhausting air. Using mesh glue for lamination can avoid bubbles, bulges and other undesirable phenomena during lamination.

The auxiliary support layer 130 is provided on the side of the first back film 120 away from the first panel layer 111 . The auxiliary support layer 130 uses, for example, SCF (Super Clean Foam) components. The SCF component exemplarily includes an adhesive layer, a foam layer, a polyimide layer, and a metal layer that are laminated in sequence on the side of the first back film 120 away from the first panel layer 111 .

The support pad 140 is provided on the side of the auxiliary support layer 130 away from the first panel layer 111 . The support pad 140 is used to support the second panel layer 112 . When the second panel layer 112 is bent to the backlight side of the display panel 110 through the bending area 113, the second back film 150 is attached to the support pad 140. In some embodiments of the present application, the support pad 140 may include a multi-layer structure. For example, the support pad 140 includes a double-sided adhesive layer, an absorbing material layer, a white base material layer and a double-sided adhesive layer that are stacked in sequence. Double-sided tape is, for example, double-sided adhesive Foam tape. The double-sided adhesive layer on the side close to the auxiliary support layer 130 is used to adhere to the auxiliary support layer 130 , and the double-sided adhesive layer on the side far away from the auxiliary support layer 130 is used to adhere to the second back film 150 .

As mentioned above, in order to provide the screen-to-body ratio of the smart watch 100, it is necessary to reduce the bending radius of the display bending area (Pad Bending) of the display module 101 and the distance between the display bending area and the middle frame. However, this method can easily shorten the liquid inlet path and reduce the waterproof reliability of the equipment. Moreover, the reduction of the bending radius will increase the risk of dead bending in the bending area, resulting in a reduction in production yield and a reduction in the distance between the display bending area and the middle frame. , causing the frame to easily deform and squeeze the lines in the bending area during the fall process, causing poor display problems. In other words, the current method can easily lead to reduced reliability while achieving narrow borders.

In order to achieve a narrow frame while improving the reliability of the display film set, a current method is to dispense glue on the outside of the bending area. Through dispensing glue, an adhesive glue is formed on the outside of the bending area. Through the adhesive glue, not only can the The assembly of the middle frame also protects the bending area, thereby improving reliability. However, generally speaking, in order to ensure that the adhesive glue is enough to protect the bending area, the amount of glue dispensed cannot be accurately controlled, and it is usually in the shape of a drop. When the display module is assembled on the middle frame, the adhesive glue easily interferes with the middle frame. As a result, the hot melt glue on the middle frame overflows or the adhesive glue directly contacts the middle frame, which affects the air tightness of the device and reduces the waterproof reliability and device reliability. As shown in Figure 3, it shows that the adhesive A in the bending area of the display module 101 (the dotted frame part in the figure) interferes with the middle frame, causing the hot melt glue B on the middle frame to overflow, and the adhesive glue The bottom of A is in direct contact with the middle frame.

In order to overcome the above problems and improve the stability of the display module so that the module can achieve a smaller frame and a higher screen-to-body ratio, in the embodiment of the present application, a jig is used to adjust the shape and thickness of the adhesive on the outside of the bending area. It is constrained to limit its shape and size in the thickness direction to ensure that the adhesive glue will not easily interfere with the middle frame when assembled with the middle frame, thereby improving the waterproof reliability of the equipment and the stability of the equipment, allowing the display module to achieve more Small bezels and a higher screen-to-body ratio. The following description takes a display module of a smart watch as an example, but it should be understood that the embodiment of the present application does not show a display module of a smart watch, but can be applied to display modules of various electronic devices, such as mobile phones, tablets, and televisions. , computers, monitors, etc.

Referring to Figures 4 to 7, Figures 4 to 7 show schematic structural diagrams of the extrusion fixture according to the embodiment of the present application. As shown in FIGS. 4 to 7 , the extrusion jig 200 in the embodiment of the present application includes a housing 201 . The housing 201 has a hollow structure with an open top, so that a receiving cavity 202 is formed in the housing 201 . The shape and size of the housing 201 match the shape and size of the die set to be extruded. For example, in the embodiment of the present application, the module to be extruded is the display module 101 of the smart watch shown in Figure 1. Therefore, the shape of the housing 201 is circular, and its size matches the size of the display module 101, so that the display The module 101 can be put into the housing 201, and the display module 101 can be positioned and constrained through the housing 201. In other words, the shape, structure, and size of the housing 201 are substantially the same as the middle frame of the electronic device 100. The structure and shape of the middle frame can be seen in FIG. 12 .

A support portion for supporting the display module 101 is formed on the inner wall of the housing 201 . The support portion includes at least two support platforms 203 . The at least two support platforms 203 are spaced apart along the circumferential direction of the inner wall of the housing 201 . The number of supporting platforms 203 can be determined as needed, for example, 2, 3, 4, 5, 6, 7, 8 or 9 or more can be provided. The support platform 203 is used to support the display module 101 placed in the housing 201. When the display module 101 is placed in the housing 201, the display module 101 will be supported by the support platform 203. More specifically, the display module 101 The cover plate 180 is supported. The distance between the support platform 203 and the top of the housing 201 can be consistent with the thickness of the cover 180 , that is, when the display module 101 is placed in the housing 201 , the cover 180 of the display module 101 is approximately flush with the top of the housing 201 .

A constraining portion 204 is also formed in the housing 201 to constrain the shape and thickness of the adhesive glue outside the bending area of the display module 101 . The restraining part 204 includes a pressing platform 205 and a pressing groove 206. The extrusion stage 205 is used to constrain the shape and thickness of the adhesive at the bottom of the bending area (the side of the bending area away from the cover plate). The shape and size of the extrusion stage 205 are designed based on the shape and size of the bottom of the bending area of the display module to ensure that a certain thickness of adhesive glue is formed at the bottom of the bending area after extrusion. Illustratively, in the embodiment of the present application, the extrusion station 205 includes a main body and ears located on both sides of the main body. The circumferential size of the main body is consistent with the circumferential size of the extrusion groove 206 and also consistent with the circumferential size of the bending area. The circumferential dimensions are consistent. The extrusion groove 206 is used to constrain the shape and size of the adhesive on the side wall of the bending area. The extrusion groove 206 is formed on the inner wall of the housing 201 , and the bottom surface of the extrusion groove 206 is on the same plane as the extrusion stage 205 . The depth of the extrusion groove 206 matches the thickness of the adhesive on the side wall of the bending area.

It should be noted that in the embodiment of the present application, the side wall of the bending area refers to the area corresponding to the bending part of the panel (see the arc-shaped area corresponding to the bending radius in Figure 2). The bending area The bottom of the panel refers to the area opposite the part of the panel that is away from the cover.

Furthermore, in the embodiment of the present application, the support part and the constraint part are configured to ensure that the adhesive glue between the display module 101 and the extrusion stage 205 will not be completely extruded before curing, ensuring that the bottom of the module is bonded The glue has a certain thickness after curing.

In addition, in the embodiment of the present application, a first auxiliary platform 207 and a second auxiliary platform 208 are also formed in the housing 201 . The heights of the first auxiliary platform 207 and the second auxiliary platform 208 are lower than the support platform 203 . The first auxiliary platform 207 is arranged around the inner wall of the housing 201 and connected with the extrusion groove 206 . The support platform 203 is arranged on the first auxiliary platform 207 at intervals. The second auxiliary stage 208 is arranged around the inner wall of the housing 201 and is connected to the extrusion stage 205 . The height of the second auxiliary platform 208 is lower than the height of the first auxiliary platform 207 , and the radial size of the second auxiliary platform 208 is greater than the radial size of the first auxiliary platform 207 .

The formation process of the adhesive glue in the bending area of the display module in the embodiment of the present application is: first, the adhesive glue is formed outside the bending area of the display module by dispensing glue, and the amount of glue dispensed is based on the required amount of adhesive glue. The thickness is determined. Then the display module is placed into the extrusion jig, and by cooperating with the extrusion jig, the shape and thickness of the adhesive glue are constrained and shaped. Then, the overall curing and demoulding process are performed to complete the dispensing of the bending area of the display module.

Referring to Figures 8 to 11, the adhesive A formed by the dispensing forming method of the embodiment of the present application has a regular and flat shape. Specifically, the adhesive at the bottom of the bending area is constrained by the extrusion stage 205, and its shape is The thickness meets the preset requirements. The adhesive glue on the side wall of the bending area is constrained by the extrusion groove 206, and its shape and thickness meet the preset requirements.

Illustratively, as shown in Figures 10 and 11, in the embodiment of the present application, the adhesive A includes a main body and extension parts located on both sides of the main body. The extension has an angle inclined relative to the main body. The inclined surface, the main part covers the side wall and bottom of the bending area, and the extension part is used to cover the side of the bending area. The sides of the bend area refer to the opposite sides of the bent portion of the panel.

Referring to Figures 12 and 13, an exemplary process for assembling the display module shown in Figures 10 and 11 on an electronic device is: first, forming a second adhesive glue on the middle frame 103 of the electronic device by dispensing glue; The second adhesive glue is, for example, hot melt glue. As shown in Figure 12, the second adhesive glue is arranged around the middle frame, and the second adhesive glue is formed in the area corresponding to the bending area of the display module, and then the display module is The module is installed on the middle frame 103, and then curing and other processes are performed to assemble the module and the middle frame.

As shown in Figure 13, the first adhesive glue A of the display module 101 is bonded to part of the second adhesive glue B, and the contact surface between the first adhesive glue A and the second adhesive glue B Smooth, and the surface of the second adhesive B is smooth. That is, when the display module shown in Figures 10 and 11 is assembled on the middle frame shown in Figure 12, since the first adhesive at the bending area of the display module 101 has a regular shape and a moderate thickness, The second adhesive glue (such as hot melt glue) B on the middle frame 103 does not overflow, and the first adhesive glue A of the display module 101 does not contact the middle frame. In this way, the airtightness of the electronic device 100 is ensured. This improves the waterproof reliability of electronic equipment and the stability of the equipment. The equipment is less likely to suffer from the problem that the distance between the display bending area and the middle frame is reduced, causing the frame to easily deform and squeeze the circuits in the bending area during the fall, causing poor display.

Illustratively, in the embodiment of the present application, the contact surface between the first adhesive glue A and the second adhesive glue B is approximately L-shaped.

Furthermore, in the embodiment of the present application, the modulus of the first adhesive glue and the second adhesive glue may be the same or different. In this way, a suitable adhesive combination can be used, for example, the first adhesive uses soft adhesive and the second adhesive uses hard adhesive to assemble and protect the electronic equipment, thereby improving the impact resistance of the actual module unit of the electronic equipment. At the same time, it increases the overall mechanical and waterproof reliability of the equipment and improves the stability of the equipment. In summary, it can be seen that using the extrusion jig of the embodiment of the present application to constrain and shape the adhesive glue in the bending area of the display module can improve the reliability and stability of the narrow frame module, and accordingly facilitate the implementation of more precise electronic equipment. It has a high screen-to-body ratio and can ensure the waterproof reliability and stability of the device.

It should be understood that although a smart watch and a circular display module are used as examples in the embodiments of the present application, the present application is not limited to this specific structure. For example, the electronic device may be a mobile phone, a television, a computer, etc., and the display module The group can be rectangular or other shapes, and the extrusion fixture can be designed accordingly with the shape and size of the display module.

As mentioned above, the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still make the foregoing technical solutions. The technical solutions described in each embodiment may be modified, or some of the technical features may be equivalently replaced; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions in each embodiment of the present application.

Claims (10)

1. An extrusion jig used to constrain and shape the glue dispensing at the bending area of the display module, which is characterized in that it includes: a shell, the shell being a hollow structure with an open top, and the A support portion for supporting the display module and a restraint portion for restraining and shaping the adhesive glue at the bending area of the display module are formed on the inner wall of the housing. The shape and size of the restraint portion are consistent with the display module. The desired adhesive must be consistent in shape and size in the bend area of the module. 2. The extrusion jig according to claim 1, characterized in that the constraint part includes an extrusion stage for constraining and shaping the adhesive glue at the bottom of the bending area of the display module, and for The extrusion groove that displays the adhesive on the side wall of the bending area of the module to constrain and shape it. 3. The extrusion jig according to claim 2, wherein the extrusion stage and the bottom of the extrusion groove are on the same plane. 4. The extrusion jig according to claim 2, wherein the extrusion platform includes a main body and ears located on both sides of the main body, and the circumferential size of the main body is consistent with the extrusion The circumferential dimensions of the pressure grooves are consistent. 5. The extrusion fixture according to any one of claims 1-4, wherein the housing is generally circular or rectangular. 6. The extrusion jig according to any one of claims 1 to 4, wherein the support part includes at least two support platforms, and at least two support platforms are located along the inner wall of the housing. Circumferential spacing setting. 7. A display module, characterized in that the module body and a first adhesive formed outside the bending area of the module body, the first adhesive uses any one of claims 1-6 The extrusion jig is used for constraining and shaping, and the outer surface of the first adhesive glue is flat. 8. The display module according to claim 7, wherein the first adhesive glue includes a main body part and extension parts located on both sides of the main body part, and the extension parts have an inclination relative to the main body part. of the inclined surface. 9. An electronic device, characterized in that it includes a casing and a display module as claimed in claim 7 or the display module installed on the casing, and the casing and the display module are bonded through a second Glue bonding: the first adhesive glue of the display module is bonded to part of the second adhesive glue, and the contact surface between the first adhesive glue and the second adhesive glue is flat. 10. The electronic device according to claim 9, wherein the contact surface between the first adhesive glue and the second adhesive glue is L-shaped.